From: Oliver Neukum <oneukum@xxxxxxxx>
This patch has been added to the 3.12 stable tree. If you have any
objections, please let us know.
===============
commit 0d5ce778c43bf888328231bcdce05d5c860655aa upstream.
A typo of j for i led to a logic bug. To rule out future
confusion, the variable names are made meaningful.
Signed-off-by: Oliver Neukum <ONeukum@xxxxxxxx>
Signed-off-by: Jiri Slaby <jslaby@xxxxxxx>
---
drivers/usb/core/hub.c | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index 066e9af4d4db..0519b6f5b86f 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -4064,7 +4064,7 @@ hub_port_init (struct usb_hub *hub, struct usb_device *udev, int port1,
struct usb_device *hdev = hub->hdev;
struct usb_hcd *hcd = bus_to_hcd(hdev->bus);
- int i, j, retval;
+ int retries, operations, retval, i;
unsigned delay = HUB_SHORT_RESET_TIME;
enum usb_device_speed oldspeed = udev->speed;
const char *speed;
@@ -4166,7 +4166,7 @@ hub_port_init (struct usb_hub *hub, struct usb_device *udev, int port1,
* first 8 bytes of the device descriptor to get the ep0 maxpacket
* value.
*/
- for (i = 0; i < GET_DESCRIPTOR_TRIES; (++i, msleep(100))) {
+ for (retries = 0; retries < GET_DESCRIPTOR_TRIES; (++retries, msleep(100))) {
if (USE_NEW_SCHEME(retry_counter) && !(hcd->driver->flags & HCD_USB3)) {
struct usb_device_descriptor *buf;
int r = 0;
@@ -4182,7 +4182,7 @@ hub_port_init (struct usb_hub *hub, struct usb_device *udev, int port1,
* 255 is for WUSB devices, we actually need to use
* 512 (WUSB1.0[4.8.1]).
*/
- for (j = 0; j < 3; ++j) {
+ for (operations = 0; operations < 3; ++operations) {
buf->bMaxPacketSize0 = 0;
r = usb_control_msg(udev, usb_rcvaddr0pipe(),
USB_REQ_GET_DESCRIPTOR, USB_DIR_IN,
@@ -4208,7 +4208,7 @@ hub_port_init (struct usb_hub *hub, struct usb_device *udev, int port1,
* reset. But only on the first attempt,
* lest we get into a time out/reset loop
*/
- if (r == 0 || (r == -ETIMEDOUT && j == 0))
+ if (r == 0 || (r == -ETIMEDOUT && retries == 0))
break;
}
udev->descriptor.bMaxPacketSize0 =
@@ -4240,7 +4240,7 @@ hub_port_init (struct usb_hub *hub, struct usb_device *udev, int port1,
* authorization will assign the final address.
*/
if (udev->wusb == 0) {
- for (j = 0; j < SET_ADDRESS_TRIES; ++j) {
+ for (operations = 0; operations < SET_ADDRESS_TRIES; ++operations) {
retval = hub_set_address(udev, devnum);
if (retval >= 0)
break;
--
2.8.1
--
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